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• Air flow monitor with automatic reset function (alternatively available with error memory)
• Switching point continuously adjustable, switching output 2 NO/ 2 NC
• Robust sensor design, high sensor protection class IP67, sensitive and fast air flow detection
• Examples of areas of application: Monitoring of heating registers, humidifiers, air curtain systems, dampers, fans, DDC

• Operating on the Pitot tube principle
• Insensitive to airflow direction
• Accuracy: 2 %
• Pairs well with HK Instruments DPT-FLOW transducers
• Connection: 1/4” OD tubing
• Operating temperature: 5...95 °C
• Round or rectangular duct
• Various duct size options (up to 1200 mm)

• Air velocity measurement range: 0...2 / 0...10 / 0...20 m/s (selectable via jumper)
• Temperature measurement range: 0...50 °C
• Output: 0...10 V / 4...20 mA
• Option: LCD screen
• Option: relay output
• Supply: 24 VDC/VAC
• Operating temperature: 0...+50°C
• Protection class: IP54

• Maximal pressure measurement range: 0...7000 Pa
• Air flow and velocity measurement
• LCD screen
• Allowed overpressure: 25 kPa
• Supply: 9 V battery
• Operating temperature: 10...+50°C
• Protection class: IP54

• Maximal pressure measurement range: 0...1000/2000/5000/7000 Pa
• Air flow and velocity measurement
• Output: 0...10 V / 2...10 V or 4...20 mA
• Option: autozero function and LCD screen
• Allowed overpressure: 25 kPa
• Supply: 10...35 VDC
• Operating temperature: -40...+50°C (see datasheet)
• Protection class: IP54

• Universal airflow monitor with Safety Integrity Level 1 (SIL1) according to IEC 61508/IEC61511 (alternatively device with SIL2 certification available)
• With switching output suitable for control cabinet installation
• Type tested by TÜV NORD according to DIN EN 61010-1: 2011-07
• Large measuring range from 0.1 ... 30 m/s, quick and easy commissioning
• Example areas of application: Monitoring heating registers, air curtain systems, dampers, fans, DDC

• Compact air flow meter with switching output (1 NO)
• Robust sensor design, protection class IP67 and compact dimensions
• Switching point continuously adjustable between 0.1...15 m/s (extended measuring range available with RLSW5)
• Exemplary areas of application: monitoring of fans, heating registers, extraction, soldering and air curtain systems

• Compact air flow meter with switching output (1 NO / 1 NC) with TÜV type examination (according to DIN EN 61010-1: 2011-07)
• Robust sensor design, protection class IP67 and compact dimensions, sensitive and fast air flow detection
• Media temperature up to 60 °C
• Switching point continuously adjustable between 0.1...30 m/s
• Exemplary areas of application: Visualization and control of air flows in building automation, filter and fan monitoring as well as in industrial applications such as catalytic converters

• Compact air flow meter with analogue output (0…10 V & 4…20 mA)
• Robust sensor design, protection class IP67 and compact dimensions
• Media temperature up to 70 °C
• Switching point continuously adjustable between 0.1...30 m/s
• Exemplary areas of application: Visualization and control of air flows in building automation, filter and fan monitoring as well as in industrial applications such as catalytic converters

• Flow monitors for water and air flows
• Robust stainless steel sensor housing for industrial environments
• Type tested by TÜV NORD according to DIN EN 61010-1: 2011-07
• Switching point sensitive and continuously adjustable both for liquids (0.03 ... 3 m/s) and for gases (0.5 ... 20 m/s)
• With switching output (1 NO/ 1 NC)
• Exemplary areas of application: Monitoring of air and water flows, cooling circuits up to 30% glycol content, pump monitoring

Compact sensor VA 525 for measuring compressed air or nitrogen inline.

• 4...20 mA and pulse or a Modbus RTU (RS 485) interface as standard
• Optional interfaces such as Modbus TCP (Ethernet), PoE, M-Bus available
• Pressure range up to 16 bar
• Temperature range up to 60°C
• For speeds up to 224 Nm/s
• Integrated display to show the measured values
• Available from 1/4" to 2''
• Settings adjustable via the keys of the display
• Main counter can be reset via the display

• PID controller
• Pressure measurement range: 0...2500 Pa / 0...7000 Pa
• Switchable between air flow and pressure measurement
• Output: 0...10 V / 4...20 mA
• Option: autozero function
• Allowed overpressure: 25 kPa
• Supply: 24 VDC
• Operating temperature: -20...+50°C
• Protection class: IP54

• PID controller
• Pressure measurement range: 0...2500 Pa
• Modbus RTU communication
• Control output: 0...10 V
• External input: 0...10 V / thermistor / binary
• LCD display
• Temperature compensation
• Allowed overpressure: 25 kPa
• Supply: 24 VDC
• Operating temperature: -20...+50°C
• Protection class: IP54

• Modern, simple and user-friendly service
• Communication interfaces: RS-485 Modbus Slave, Modbus TCP Slave and optionally Ethernet
• FTP server (available in controller versions with Ethernet interface)
• Selection of PID parameters for any unit
• For easy programming and devices configuration, LUMEL offers one common LPCon software
• Parameter logging on SD card

Gas cylinder heating jacket prevents frosting and ensures a constant flow rate for laboratory and industrial processes. Equipped with a digital thermostat, it is suitable for various gases and has a durable, lightweight design with quick-release buckles for easy attachment and transport.

• Digital thermostat with a heating range from 0 – 90ºC
• Durable, lightweight design with quick-release buckles
• Suitable for various gases, including SF6, Propane, Nitrogen, Oxygen, BCl3, WF6, and HF
• Silicone impregnated fabric
• Fiberglass insulation
• Teflon heating wire
• 3 meter power cable (no plug)
• Safety Thermostat
• IP40 Protection

The silicone heater increases flow from LPG cylinders. By adding heat directly to the cylinder, the silicone heater maximizes LPG vaporization, ensuring that your supply lasts longer and works better, even under high demand.

• Dimensions: 890mm x 120mm
• Voltage: 230V
• Wattage: 500W
• Compatible with 22kg and 33kg standard size gas bottles
• Spring mounted for perfect cylinder fit
• Features a 40°C limiter and a 55°C safety fuse with manual reset

Utilizing unique dual-sensing technology, the device combines electromagnetic induction with an integrated ultrasonic sensor to provide highly accurate detection of both liquid level and flow velocity. Specifically optimized for partially filled pipes, open channels, and gravity-fed systems, the unit achieves an outstanding accuracy of ±1–2% of the actual flow rate.

• Internal pipe diameter: DN80…DN600
• Flow velocity (min. / max.): 0,46…7,5 m/s
• Accuracy: ± 1…2 % of actual flow (depends on flow profile and level detection)
• Process Temperature: 0…+70 °C
• Coating materials: hard rubber
• Maximum working pressure: No pressure (gravity flow) or 10 bar if pipe is full
• Output signal: 2× pulse / flow switch (max. 400 Hz), 4 ... 20 mA, 1× RS485 interface (Modbus / M-Bus protocol), M-Bus, HART, Ethernet module (TCP/IP, integrated web server)
• An optional IoT module allows measured values to be transmitted wirelessly via NB-IoT to the cloud
• Data archiving on a micro-SD card
• Process connections: flange
• Maximum ambient temperature: 55 °C
• Power supply: 24 V AC / DC, 230 V AC
• Protection class: IP68 for sensor, IP65-IP68 for transmitter

FLOW 55 datasheet [EN]

FLOW 38 MID version with certification, allowing the flow meter to be used for utility metering. FLOW 38 MID is certified for use with drinking water. The FLOW 38 MID electromagnetic flow rate meter is a precise measuring device designed to measure the flow of electrically conductive liquids.  The electronic unit (display) can be connected directly to the body (rotatable up to 350° for convenient viewing). Various process connection versions are available. A wide selection of materials for the internal surfaces in contact with the process medium allows the device to be adapted to various liquids.

• Internal pipe diameter: DN10…DN400
• Flow velocity (min./max.): 0,1…12 m/s (R40, R50)
• Accuracy: 0.2% in the 1:100 range, 0.5% in the 1:200 range
• Maximum medium temperature depending on the inner coating: 150 ℃
• Coating materials: rubber, teflon, ceramic
• Maximum working pressure: up to 16 bar
• Output signal: pulse, 4-20 mA, RS485 (Modbus RTU/ M-bus)
• An optional IoT module allows measured values to be transmitted wirelessly via NB-IoT to the cloud
• Process connections: Flange, Thread
• Maximum ambient temperature: 50 °C
• Power supply: 24 VAC/VDC, 110... 230 VAC
• Protection class: IP65, IP67, IP68

The FLOW 38 electromagnetic, bidirectional flow and flow rate meter is a precise measuring device designed to measure the flow of electrically conductive liquids. Due to the wide range of configurations available, this device is used in many industries. The electronic unit (display) can be connected directly to the body (rotatable up to 350° for convenient viewing) or connected via a cable up to 30 meters long. Various process connection versions are available. A wide selection of materials for the internal surfaces in contact with the process medium allows the device to be adapted to various liquids. FLOW 38 is certified for use with drinking water. There is also a version of the Flow38 with MID certification, allowing the flow meter to be used for utility metering.

• Internal pipe diameter: DN4-DN600
• Flow velocity - bidirectional (min./max.): 0.2…12 m/s
• Accuracy: 0.2% in the 1:100 range, 0.5% in the 1:200 range
• Maximum medium temperature depending on the inner coating: 150 ℃
• Coating materials: rubber, Rilsan, Teflon, ceramic
• Maximum working pressure: up to 100 bar
• Output signal: pulse, 4-20 mA, RS485 (Modbus RTU/ M-bus), Modbus TCP/ IP, HART
• An optional IoT module allows measured values to be transmitted wirelessly via NB-IoT to the cloud
• Process connections: Flange, Sandwich, Food grade fittings (clamp), Thread
• Maximum ambient temperature: 55 °C
• Power supply: 24 VAC/VDC, 110... 230 VAC
• Protection class: IP65, IP67, IP68

The FLOW45 electromagnetic flowmeter is equipped with a lithium battery, so it does not require an external power supply. The device has high accuracy in terms of full flow rate. Before each measurement, automatic diagnostics of all functions and parts necessary for proper measurement are performed. The device has a built-in empty pipe test and if there is no full flow, it will invalidate the entire measurement, as well as assess the flow direction and record the appropriate data.

• Internal pipe diameter: DN10…DN200
• Flow velocity (min. / max.), bidirectional: 0,2…12 m/s (1/60)
• Accuracy: 1 % for 1…10 m/s
• Maximum medium temperature depending on the inner coating: 150 ℃
• Coating materials: rubber (hard, soft, drinking water certified), Teflon, ceramic, Rilsan
• Maximum working pressure: up to 100 bar
• Output signal: pulse, RS485
• GSM data transmission module
• Data archiving on a micro SD card
• Process connections: flange, thread, sandwich, food grade
• Maximum ambient temperature: 5…55 °C
• Power supply: replaceable lithium battery (last up to 5 years) / external (12 V DC, max. 500 mA)
• Protection class: IP65, IP67, IP68

• Air flow monitor with switching output for control cabinet installation
• Safely and reliably monitor hot air flows up to 400°C
• Sensitive response behaviour
• Large measuring range (0.1...30 m/s), simple and fast commissioning
• Areas of application: Monitoring of heating coils, drying plants, industrial ovens, granulate dryers, surface technology plants, thermoprocess technology

• Flow monitoring with SIL1 certification according to IEC 62061 (corresponds to Performance Level c according to EN ISO 13849-1)
• Can be used in ATEX zones 1 and 2 in conjunction with 2 Zener barriers supplied
• Large measuring range from 0.1 to 30 m/s with media temperatures from 0°C to 60°C
• With switching output suitable for control cabinet installation
• Developed for demanding industrial applications, IP40
• Example areas of application: Flow monitoring in paint shops, paper factories and research facilities

• Air flow monitor for monitoring air flow in ATEX zones 1 and 2 (optionally additionally with SIL1 or SIL2 certification)
• With switching output (1 NO/ 1 NC) for control cabinet installation
• Type tested by TÜV NORD according to DIN EN 61010-1: 2011-07
• Large measuring range (0.1...30 m / s), simple and fast commissioning
• Example areas of application: Monitoring heating registers, air curtain systems, dampers, fans, DDC, industrial furnaces, granulate dryers

Thermal mass flow sensor for compressed air and gases VA 500

• 4...20 mA, pulse and a Modbus RTU (RS 485) interface as standard
• Optional: Interfaces such as Modbus TCP (Ethernet), PoE, M-Bus
• Optional: Bi-directional measurement
• Pressure tight up to 50 bar
• Temperature range up to 110 °C
• Protection class IP65
• Suitable for gas velocities up to 224 Nm/s
• Integrated display for showing the measured values
• Can be used from 1/2" up to 40", larger diameters on request
• Easy installation under pressure
• Settings can be changed via the display
• Main counter reading can be reset via the display

Mechanical flow monitor JSW for liquid media. 

• Flow monitor for liquid media in the range of 4…400 cm/s with analog (4…20 mA) and status output (PNP, NPN) for monitoring a flow threshold
• Ten LEDs indicate flow and contact closure
• Equipped with 2 control buttons for setting the switching point
• Available with 65 mm and 125 mm mounting depths
• Rugged design for industrial environments, IP67

• Calorimetric measuring principle
• Units freely selectable via keys at the display
• Display shows 2 values at the same time, twistable by 180 ° degree
• Integrated Modbus interface enables connection control systems, SCADA
• M-Bus (optional)
• Analog output 4...20 mA
• Pulse output (galvanic isolation)
• High measuring accuracy (ideal for leakage measurement)

• Flow sensor suitable for evaluation unit NLSW®45-6 and NLSW®45-6.1
• Thread: PG7, optional accessories available
• Material: stainless steel V4A
• Media temperature: optional up to 400°C
• Protection class sensor: IP50
• Insertion depth: 50 mm, 130 mm, 165 mm, 300 mm
• Compressive strength: 10 bar

• Connected to a liquid manometer, measure dynamic pressure in a pipe and determine its speed (in range: 0...100 m/s) and flow m3/h
• Sheathed thermocouple K probe integrated, with connection cable length 1,5 m (option)
• Introduced perpendicularly in the pipe
• Particularly adapted for measurement in warm air, charged with particles and for high speed
• Accuracy: Better than 1 % for an alignment in relation to the flow axis of the fluid of ± 10 °
• Coefficient: 1,0015 ± 0,01
• Max static pressure: 2 bar
• Temperature of use: 0…600 °C (up to 1000 °C in option)

• Range: -250...2550 Pa
• Maximal overpressure: 30 kPa
• Accuracy: ±1,4 %
• Pressure and air flow measurements from air diffusers and valves
• Data can be uploaded on your computer for visualization and further analysis
• Over 700 programmed valve types
• Mediums: air and non-aggressive gases
• Operating temperature: -10... +50 °C
• Connection: ø 5 mm pressure hoses
• Can be used with Pitot tube
• 5 year warranty
• Included: calibration certificate, 2 x 2 m PVC hoses

• Measured parameters (with respective sensors):
  a) Temperature (Pt100 or thermocouple)
  b) Humidity
  c) Air quality
  d) Air velocity
  e) Airflow
  f) Tachometry
• Two inputs for Pt100 temperature sensors (range -200...600 °C)
• Up to 6 measurements simultaneously
• Power supply: Lithium-Ion battery (up to 57 hours)
• Calibration certificate, additional battery, transport case included
• Operating temperature: 0...50 °C
• Protection class: IP54

• Connected to a liquid manometer, measure dynamic pressure in a pipe and determine its speed (0...85 m/s) and flow m3/h
• The Pitot tube S is more sensitive to alignment errors than the Pitot tube L.
• Introduced perpendicularly in the pipe
• Particularly adapted for measurement in warm air, charged with particles and for high speed
• With integrated K type thermocouple
• Accuracy: 1 %
• Coefficient: 0,84 ± 0,01
• Static pressure: Atmospheric
• Temperature of use: 0…1000 °C

• Flow and temperature sensor for liquids in pipes
• Output: 1 x 4...20 mA, 1 x PNP / 2 x PNP
• Flow measurement range: 1...150 cm/s (water)
• Temperature measurement switching points: 15, 30, 45, 60, 75 °C
• Flow rate measurement is shown in a bar graph by five green LEDs
• Settings provided by magnetic pen
• Stainless steel case
• Supply: 12...34 VDC
• Ambient temperature: -20...+80 °C
• Protection class: IP67 / IP68

• Air velocity, airflow and temperature measurement
• Air flow measurement with a cone
• Automatic average
• Display of minimum and maximum values, hold function
• Adjustable auto shut-off
• Detection of flow direction
• Selection of units
• Supplied with calibration certificate

• Display of minimum and maximum values, hold function
• Adjustable auto shut-off
• Automatic average
• Selection of units
• Detection of flow direction (LV 110/LV 117)
• Supplied with calibration certificate
• Air flow measurement with a cone (LV 110/LV 117)

• Universal measuring inputs, it can be used for controlling of temperature (RTD, thermocouple) and other physical values
• Colored TFT display presentation of measured values (numerical values, bar graph, meter, graph)
• Control algorithms On-Off; PID; 12 segmental adjustment program
• Interfaces: USB, RS485 (MODBUS-RTU) and Ethernet (100Base-T, TCP / IP protocols: Modbus-TCP, HTTP, SMTP)
• Internal webserver, information about the active channel, measuring parameters and the status of the regulation, requires access
• Available alarm sound and visual, status outputs and alarm notification e-mail
• Write data in a standard text file located in the internal controller memory (4GB) FAT with the possibility of editing in spreadsheets such as Microsoft Excel
• Selection of PID parameters for each output
• The possibility of creating inter-channel type mathematical and logical operations: the difference, average, sum, bigger, smaller measurement
• Function digital inputs (BIN) to changes modes associated outputs, retransmission of measurements
• Free software for data processing and device programming

• Volumetric flow and air velocity meter with linear analogue output in control quality (0...10 V & 4...20 mA) and switch
• Suitable for media temperatures up to 350°C
• Measured value display by means of LCD and LED
• Freely scalable measuring range m/s, m³/h, l/min
• Sensitive and fast airflow detection up to 30 m/s
• Exemplary areas of application: Measurement and control of air flows, building services, PLC, filter monitoring, extraction and extrusion systems, exhaust gases and test benches

Mechanical air flow (wind) indication relay JSL-1E.

Sensor SKU: 5905309600096 (IP30)

Sensor SKU: 5905309601581 (IP67)

Efento BLE sensors transmit the data over BLE (Bluetooth Low Energy) and send data to the cloud** through Efento gateway or to other third-party integration. Free mobile application let to configure the device and read the data from its memory.

• External sensor measurement range: -200…+200 °C
  • Accuracy: up to 0.5 °C in the +200 °C and 1.3 °C in the -200 °C
• Default probe cable length: 1 m (other lengths on request)
• Measurement and transmission period: 5 seconds to 30 days (configurable by the user)
• Battery ensures up to 5 years of maintenance-free operation, 6300 mAh, 3xAA battery (replaceable)
• The device stores 40,000 measurements in its memory, when the memory is full, the oldest measurements are overwritten
• The device can be used as a stand-alone data logger or connected to the Efento gateway to view and store data in the Efento cloud
• Possibility to integrate sensor to other third-party systems
• Operating temperature / humidity: -15…+70 °C / 0…99 %
• Case IP30 protection (IP 67 on request)

Sensor SKU: 5906660327790 (IP30)

Sensor SKU: 5905309600263 (IP67)

Efento NB-IoT sensors transmit the data over cellular network (Narrowband IoT) and do not require any additional devices (router, gateway, etc.). Sensors are also equipped with Bluetooth Low Energy interface, which allows quick and easy configuration with a smartphone. Efento NB-IoT sensors can be integrated with Efento Cloud platform or any other third party systems.

• External sensor measurement range: -200…+200 °C
  • Accuracy: up to 0.5 °C in the +200 °C and 1.3 °C in the -200 °C
• Default probe cable length: 1 m (other lengths on request)
• Communication NB-IoT bands: default B8 and B20 (others on request)
• Measurement period: 1 minutes to 18 hours (configurable by the user)
• Measurement sending interval: 5 minutes to 7 days (configurable by the user)
• Battery ensures up to 5 years of maintenance-free operation, 6300 mAh battery
• The device stores 40,000 measurements in its memory, when the memory is full, the oldest measurements are overwritten
• Possibility to integrate sensor to other third-party systems
• Operating temperature / humidity: -15…+70 °C / 0…99 %
• Case IP30 protection (IP 67 on request)